Green Obsidian

Green Obsidian : What is green obsidian?

The L6 ordinary chondrite El Médano 128, a 556 g meteorite recovered in the Atacama Desert. Photo courtesy CCJ-CNRS, P. Groscaux.

Oldest meteorite collection on Earth found in one of the driest...

A tiny inclusion of lherzolitic garnet inside a diamond collected from the De Beers Group Victor Mine in Ontario. New research revealed lherzolite is a source rock for diamond formation—a discovery that could eventually help geologists find valuable deposits around the world.

Study identifies lherzolite as a source rock for diamond deposits

Researchers doing fieldwork at Aluto in East Africa.

Rare volcanic rocks lift lid on dangers of little-studied eruptions

Conventional geothermal resources have been generating commercial power for decades in places where heat and water from burble up through naturally permeable rock.

Solving geothermal energy’s earthquake problem

State Highway 287 slumped into Hebgen Lake; damage from the August 1959 Hebgen Lake (Montana-Yellowstone) earthquake.

Aftershocks of 1959 earthquake rocked Yellowstone in 2017-18

The retreat of Mars' polar cap of frozen carbon dioxide during the spring and summer generates winds that drive the largest movements of sand dunes observed on the red planet.

On Mars, sands shift to a different drum

Contact Metamorphism

Contact Metamorphism : What is Contact Metamorphism? How it formed?

Regional Metamorphism

Regional Metamorphism : What is regional metamorphism? How it formed?

The rising Earth from the perspective of the moon.

Formation of the moon brought water to Earth

1...136137138...688Page 137 of 688